Ventilator



June 3 T. A. JENKINS vENTILAToR a. ll Ill .IPB'V 1:1. llrunnvllllllllr.

Filed April 25 Patented June`3, 1924.

THOMAS A. JENKINS, 0F JERSEY CITY, NEW JERSEY.

VENTILATOR.

Application filed April 25, 192s. serial No. 634,517.

To all whom it may concern:

Be it known that I, THOMAS A. JENKINS, a citizen of the United States,residing at Jersey City, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in Ventila-4tors, of which. the following is a specification.

This invention relates to a ventilator, de-

signed primarily for use in connection with the Ventilating ofbuildings, railway cars, street cars and automobiles, but it is to beunderstood that a ventilator in accordance with this invention, can beemployed for any purposes wherein it is found applicable, and theinvention has for its object to provide, in a manner as hereinafter setforth, a ventilator including a series of overlapping transparel'lt,translucent or opaque panels of vitreous material arranged in superposedrelation and capableJ of being synchronously adjusted from and to closedposition to provide for the desired degree of ventilation.

A further object of the invention is; to provide, in a manner ashereinafter referred to, a veiltilator including means for supportingthe panels in a manner where they will be air tight when in closedposition.

A further object of the invention is to provide, in' a manner ashereinafter set forth, a ventilator including means Ito constitute acushioned abutment for thev end panels ofthe series when the panels areshifted to closed position and to further provide a pair of supports foreach panel having associated therewithmeans to prevent the chipping ofthe ends of each panel and also to prevent vibration thereof when setup.' as well as insulating each panel from its pair of supports.

Furtller objects of the invention are to provide a ventilator, in amanner as hereinafter set forth, whichis simple in its construction andarrangement, strong, durable,

' colllpact, having the operating parts thereof readilypaccessibleforfcleaning or other purposes. thoroughly efficient in its use,conveniently operated, quickly installed and comparatively `inexpensive'to' manufacture.

Vith the foregoing and other objects in view, the invention consists ofthe novel constructioll, combination andarran ement of parts ashereinafter more speci cally described and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood l that changes, variationsl and modificationscan be resorted to which come within the scope of the claims hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views Figure 1 is a front elevationl of aventilator, in accordance with this invention.

Figure 2. is a section -on line 2-2, Figure 6.

Figure 3 yis a section on line 3-3, Figure 1.

Figure 4 is afront view and Figure' 5 a side elevation of the supportingretainer for a ventilator panel. l

` Figure 6 is a fragmentary View, with certain elements removed, of oneof theupper crnersof the ventilator. a Figure 7 is a fraglnentary viewof the adjusting means for the ventilator panels.

IFigure 8 is a fragmentary view, in section, illustrating a pair ofpanels and the guide strip for the supporting retainers. Figure 9 is aksection on line 9 9, Figure 1. l

Figure 10 is a section on line lO-lO, Figure l.

Referring to the drawings in detail, the Ventilator comprises a bodyportion in the formbf a rectangular frame consisting of a pair of sidebars l, 2, and a pair of end bars 3, 4, the latter being of greaterwidth than the former.

Positioned within the body portion of thel ventilator, as well asprojecting forwardly flat rear bar 7, a flat front bar 8 a flat innerbar 9, which is interposed between the bars- 7 and 8, as well as beingflush therewith, and eacll of said side members further includes a flatouter bar 10, of less width than the bar 9 and whichis positionedagainst the inner face of the bar 8, and has its outer face Hush withthe outer side edge of the bar 8. Each of said' side members furtherincludes a relatively thin closure strip 11, which is positioned betweenthe bars 7 and 8 and spaced from the bar 10. Interposed between the bar10 and the strip 11, is a filler strip 12, which abuts against the bar 8and is of the same width as the bar 10. l

Arranged between the'bars 7, 8, 9 and closure strip11, is a series ofcombined supporting and bracing brackets which are spaced from eachother and each of which comprises a body portion 13, abutting againstthe closure strip 11, and said body portion 13 has extending from eachend thereof an angle-sha ed extension formed of two arms 14, 15. eextensions are oppositely disposed with respect to each other and thearms 14 of. one extension abut 1 against the inner face of the bars 7and 8.

` the arms 14 of the said extensions by the removable hold-fast devices16. of thesaid extensions are secured tothe bar 9 b the removablehold-fast devices 17.

VYIhen the side members of the supporting frame are set up with respectto the body portion of the ventilator, the side bars of the body portionextend into the side members of the supportin frame and are clampedbetween the bars and filler strip 12, in a manner as shown in Figure 9.

The bar 9, in proximity tothe bar 8, is

rovided with a series of superposed open- 1ngs 18, arranged equi-distantfrom each other, and mounted in each of said openings is a bearingsleeve 19.

The top member of the supporting frame comprises a rear bar 20, a frontbar 21, a

bottom bar 22 positioned between the bars' 20 and 21, as well as beingflush therewith, a top bar 23, which is arranged against the inner faceof the bar 21 and is of less width than the bar `22, an intermediatebracket 24 mounted on the bar 22 and of lesswidth than the bars 20 and21,/a vclosure strip 25,

ositioned pn the bracketv24 and interposed etween the bars 2O and 21 andspaced from the bar 23, a liller strip 26. interposed between the bar 23and the closure strip 25 and of the same width as the width of the topbar 23. The bars 20 and 21 abut against the bars 7 and 8 of the sidemembers of the supporting frame, and the bar 22 abuts against the bars 9of the side members of the supporting frame.

Arranged at each end of the'top member ofthe supporting frame andprojecting into' the upper ends ofthe side members of the supportingframe is a combined bracing and' supporting bracket 27 formed with asocket The arms Madone 28a for the reception of the upper end of the bar9, as clearly shown in Figure 6. The bars and 21 are secured to thebrackets 27 by the hold-fast devices 28, and the bars 7 and 8 aresecured to the brackets 27 by the hold-fast devices 29. The bar 21 issecured to the bracket 24 by the hold-fast devices 30.

supporting frame is an operating shaft 31,

which is journaled in the portion of greater hei ht of each of thebrackets 27 and also in fille upper portion of the bars 9 and whichprojects from each of the bars' 9 into the side members of thesupporting frame. The shaft 31, centrally thereof, is formed with a Worm32, which meshes with a Worm gear 33, carried by an actuating shaft 34,which is journaled in the bracket 24 and' bar 21 and further projectsoutwardly from the bar 21 and has its outer portion enlarged or formedwith a stop collar 35 to arrest inward movement of said shaft 34 and theouter terminus of the said shaft 34 has a sprocket gear 36 engaged andoperated by a pull `member 37 in the form of a sprocket chain.l By thisarrangement when the pull member 37 is shifted, the shaft 34 will beactuated, causing thereby the rotation of the shaft 31. 7

The bottom member of the supporting frame comprises a rear bar 40, abottom bar 41,'a closure' strip 42, a filler strip 43. The bar 39 isinterposed between the bars 38 and 40, the closure strip is interposedbetween the bars 38 and 40, and the bottom bar abuts against the frontbar 40 and is of less width than the bar 38, and the said bar hasinterposed therebetween and the closure strip 42, the filler strip 43.rThe bars 38 and 40 are interposed between the bars 7 and 8 of thesupporting frame. Spacing and supporting brackets 44 are interposedbetween the bars 38 and 40 and are positioned against the closure strip42, and the bars 38 and 40 are detachably secured to the brackets 44 bythe hold-fast devices 45. The bottom bar 4 of the body portion, isclamped betweenv the in Figure 3 of the drawings. f Secured to the outerface of each bar 9, is a lengthwise lextending guide member 46, havingone side provided with semi-circular cut away portions 47 and into eachof which extends a supporting retainer, tol be hereinafter referred to,for one end of'a ventilator l130 number of ventilator panels.

Secured to the inner face of each of the bars 9, is a retainer elementfor an actuating rack bar 48, and said element comprises a bar 49extending lengthwise of the bar 9 and secured therewith by the hold-fastdevices 50, and positioned against the bar 49,

as well as extending from each side thereof is a flat strip 51, which isretained in position by thehold-fast devices 50: The rack bar 48 isarranged against one side of the bar 49 and is overlapped by the strip51 whereby the bar 48 will be slidably connected to the inner side ofthe bar 9. j

The actuating rack bar 48 extends lengthwise of the supporting frame andeach rack bar 48 has it upper end in meshwith a pinion 52,1 carried byan end of the shaft 31 and retained in position by the securing device53 mounted on the end ofthe shaft 31. By this arrangement, when theshaft 31 is operated, the rack bar 48 will be carried therewith.

The actuating rack bars 48 are each located at opposite sides of eachvertical set of pivots, so that' when the pull member 37 is actuated,oneof the rack bars moves upwardly while the other simultaneously movesdownwardly.

Mounted in each of the bearings 19 is a stub shaft 54, having a reducedend 55 which projects loutwardly from the bar 9.v

The shaft 54-also`projects inwardlyA from the bar 9 and carriesasprocket pinion 56, which is permanently in mesh with the teeth of therack bar 48. The pinion 56 is secured to the shaft 54 by the securingdevice 57. The foregoing arrangement provides for the operating of theshafts 54 when the rack bar 48 is shifted due to the operation of theshaft 31, and all of the shafts 54'will be synchronously operated asisobvious.

The ventilator includes'a series' of superposed overlappingvsynchronously operated ventilator panels and each of Iv vhich isindilcated at 58. Each ventilator panel is rectangular in contour and ispreferably formed of vitreous material, although it is to be understoodthat the panel can be constructed of any desirable material, and alsomaterial that is transparent, translucent or opaque., and associatedwith each end-ofeach panel is `a supporting retainer so set up as to beshifted simultaneously with a shaft 54, underA such conditions providingfor the synchronous operation of the panels from and to initially"closed position. Each of the supporting retainers comprises asubstantially semi-circular body portion 59. which extends into acutaway portion 47 ofthe guide member 46. The body portion 59 isprovided with an opening 60, in which extends the reduced end 55 of theshaft 54,v

land-said. reduced end 55 is fixedly secured to the body portion 59 sothat the latter will be shifted with the shaft 54 when said shaft isoperateda through the medium of the 4rack bar 48. The body portion 59has formed integral therewith a pair of oppositely disposed flat lateralextensions l61, 62, and which are `offset with respect to each other.Formed integral with the body portion 59 is a pair of laterallyextending flanges 63, 64, which are spaced from each other, as well asextending in opposite directions with respect to each other. The flange63 is formed at one side of the body por tionl 59 and the flange 64 isarranged' between the flange 63 and the other side of the body portion59. The flange 63 is formed integral with-one edge of the extension 61and further projects outwardly from` the outer end of the extension 61and carries an abutment member 65 in the form of a screw having threadedengagement with the proljecting end of the flange 63. Carried by theAflange 63, intermediate its ends, is 'a clamping member 66.in the formof a screw having threaded engagement with the flange 63. The flange 63is disposed at right-angles with respect tothe body portion 59'and thesame arrangement is had with respect to the flange 64. Carried by theflange 64 is a clamping member 67, in the fform of a' screw havingthreaded \engagement with said,v flange 64, and the Ilatter is formedintegral with one `,side edge and the outer end edge of the extension62, whereby the outer end flange 64will be disposed at right angles,

as at 68 with respect to the remaining portion of the flange 64. Theopening 60, in the body portion 59' is arranged between Athe flanges 63and 64, and the inner ends of the flange 63 project beyond the opening60 and the inner end ofthe flange 64 also projects I beyond theopening'60. Arranged against the flange 63 is a resilient cushioning orprotective element 69, and positioned against the inner face of theflange 64 throughout is a cushioning or protective element 70. Theelement 69 which is `arranged vagainst `the flange 63, is positionedagainst the inner` facev of the said'langeand extends from the inner endthereof and terminates ata point inwardly with respect'to'the outer endYthereof, or in other words, the cushioningv element 69 has one 'endpositioned at th outer end of the extension 61.

The clamping element 66, as well as the clamping element 67 includes anut 66i for the purpose of retaining said elements in adjusted position.

When a ventilator panel 58 is setup. is positioned between the outer endof -the flange 68 and the abutment member 65, the

latter acts as a' retainer for the panel. The

end of the panel. is positioned between the cushioning elements 69 ad70,'and the ele ments 66 and 6.7 are adjusted for the purpose of takingup any variations in the thickness jin or'screw may be employed forextending rough the opening 6 0 and engaging lin the shaft 54 forconnecting a supporting retainer a to said shaft.

The body portions 59 of the supporting retainers ride in thesemi-circular cutaway portions747 ofthe guide member 46, and owing tothe setting up of the body portions 59 in the manner as shown and inconnection With the employment of the members 46 a practically air tightarrangement is set up.

Depending from the bar 22 is a support 71,. which carries an adjustableabutment 72,

i the latter is formed of cushioning material,

slotted as at 73,and adjustably connected to the support 71, by washers74 and screws 75. The abutment 72 is employed in connection with theupper ventilator panel 58 of the series of panels, and provides not onlya cushion for said panel when the latter is shifted to closed position,but sets up an air tight closure when the panel is in closed position.

Extending upwardly from the bar 39, is a support 7 6, which is offsetwith respect to the support 71, and which carries a resilient abutment77 similar in construction to the abutment 72 and connected up in thesame manner as the abutment 72, and performs a function similar to theabutment 72 with respect to the lower ventilator panel 58 of the seriesof panels.

The sprocket pinion can be employed as a knob for actuating the shaft34, and when so used the pull member 37 is dispensed with, but it hasbeenfound that the pull member provides for a quicker shifting of theshaft 34 for the purpose of adjusting the ventilator panels.

Although the preferred embodiment of the ventilators is as described andillustrated, yet itis to be understood that changes in the details ofconstruction can be had which will fall within the scope of theinvention as claimed.

What 1 claim is 1. A yentilator comprising a series of overlappingventilator panels arranged in superposed relation, means at each. end ofsaid panels to provide for the synchronous adjustment thereof, a pair ofslidable rack bars engaging with said means for operating the same,means rcommon to and operatively engaging with said bars for shiftingthem, and adjustable resilient abutments associated incense with the endpanels ofy said series of panel` 2. A' ventilator comprising asupporting frame including` a pair of side bars and an end bar, a seriesof overlapping ventilator panels arranged within said frame insuperposed relation and extending transversely with respect thereto, aseries of supporting retainers positioned against each side bar of saidframe and each having one end of a panel connected therewith, a seriesof toothed elements shiftably mounted in each of the side bars of saidframe and each having a retainerfixedly secured therewith and shiftablethereby, slidable members mounted in the side bars of said frame andoperatively engaging with said elements for shifting them, means mountedin the said end bar of said frame and common to said members forshifting them in opposite directions causing thereby the operation ofsaid elements' toshift said panels synchronously, and adjustableclamping elements carried by each of said retainers for each end of apanel.

3. A ventilator comprising a supporting frame including a pair of sidebars and an end bar, a series of overlapping ventilator panels arrangedwithin said frame in superposed relation and extending transversely withrespect thereto, a series of supporting retainers positioned againsteach side bar of said frame and each having one end of a panel connectedtherewith, a series of toothed elements shiftably-mounted in each of thesiile bars of said frame and each having a retainer ixedly securedtherewith and shifteol able thereby, slidable members'mounted in of saidretainers provided with an adjust able element for connecting one end ofa panel therewith. v

4. A ventilator comprising a supporting frame including a pair of sidebars and an end bar, a series of overlapping ventilator panels arrangedwithin said frame in superposed relation and extending transversely withrespect thereto, a series of supporting retainers positioned againsteach side bar of said frame and each having one end of a panel connectedtherewith, a series of toothed elements shiftably mountedy in each ofthe side bars of said frame and each having a retainerfixedly securedtherewith and shiftable thereby, slidable members mounted in the sidebars "of said frame 'and operatively engaging with said elements forshifting them, means mounted in' Athe said end bar of shifting them inopposite directions causing thereby the operation of said elements toshift said panels synchronously, adjustable clampingelements carried byeach of said retainers for each end of a panel, and each of saidretainers provided with an adjustable lelement for connecting one end ofa panel therewith, and a protective member mounted in each of theretainers for the end of a panel. v

In testimony whereof, I alix my signature hereto.

THOMAS A. JENKINS.`

